(19)

(11)

EP 4 408 600 A1

(12)

(43) Date of publication: 07.08.2024 Bulletin 2024/32 (21) Application number: 22877169.7 (22) Date of filing: 22.09.2022

(51) International Patent Classification (IPC):  B22F 10/12(2021.01) B33Y 10/00(2015.01) C22C 23/00(2006.01) B22F 10/32(2021.01) B22F 1/05(2022.01) (52) Cooperative Patent Classification (CPC): C23C 8/02; C23C 8/08; A61L 27/047; A61L 29/02; A61L 31/022; A61L 2400/18; A61L 31/14; A61L 29/14; A61L 27/50; B33Y 80/00; Y02P 10/25; B33Y 10/00; B22F 10/62; B22F 2999/00; B33Y 40/20; C22C 1/0408   C-Sets: B22F 2999/00, B22F 10/62, B22F 2201/00; (86) International application number: PCT/US2022/044443 (87) International publication number: WO 2023/055654 (06.04.2023 Gazette 2023/14)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 30.09.2021 US 202163250488 P 28.04.2022 US 202263336101 P (71) Applicant: Entegris, Inc. Billerica, MA 01821 (US)	(72) Inventor: WALDFRIED, Carlo Middleton, MA 01949 (US) (74) Representative: Greaves Brewster LLP  Copa House Station Road Cheddar, Somerset BS27 3AH Cheddar, Somerset BS27 3AH (GB)